Re: [PATCH 6/8] i386: bitops: Don't mark memory as clobbered unnecessarily

[Andi Kleen]

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes:
> 
> (Yes, the "asm volatile" may do so too, but it's very unclear what the 
> "volatile" on the asm actually does, so ..)

Without the volatile they get completely optimized away :/
[tried that, cost a lot of debugging time -- empty string functions
cause a lot of strange side effects]

-Andi
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